<form name="punchout_form" method="post"
      action="https://openapi.alipaydev.com/gateway.do?charset=utf-8&method=alipay.trade.page.pay&sign=ZPuxEfOx7RAxGZoD042QMxisavxdnZXSX22jN428WZtjOo7eDyDPpFZCp3oW%2B3K0uEn362BcYu468jozo%2F9SgzSyfbAm1%2Fd6nGfJj%2FCyug7TaccQ73%2BuQxjL%2FSCXnzOKWGNMDAe4Xqm%2FhjQuxGng95teFBhfSVR%2F%2BojAfBaBEkNqsDiCzzgi0nih7tVZ%2BIOHdkBDuW2GLxB2zMuEv%2BcVjwHXUp%2B5OqkwW8G44s9vF7HNg%2Fwxn%2FqdvwLAxkESwu8cz4RvHy5MWfXaLkm8Ezy08tg%2FpF2SLIRoy5RsBE7sx%2F4F4QCQosdt1ptWAS5Bv6ng9cHzr%2Fw54oBtFfbAC82rcQ%3D%3D&return_url=http%3A%2F%2Fkalista.natapp1.cc%2FreturnUrl&notify_url=http%3A%2F%2Fkalista.natapp1.cc%2FnotifyUrl&version=1.0&app_id=2016101800712580&sign_type=RSA2&timestamp=2021-04-12+17%3A17%3A00&alipay_sdk=alipay-sdk-java-dynamicVersionNo&format=json">
    <input type="hidden" name="biz_content"
           value="{&quot;body&quot;:&quot;上&quot;,&quot;out_trade_no&quot;:&quot;1213121321331&quot;,&quot;product_code&quot;:&quot;FAST_INSTANT_TRADE_PAY&quot;,&quot;subject&quot;:&quot;苹果手机&quot;,&quot;timeout_express&quot;:&quot;10m&quot;,&quot;total_amount&quot;:&quot;12120&quot;}">
    <input type="submit" value="立即支付" style="display:none">
</form>
<script>document.forms[0].submit();</script>